1977 DATSUN PICK-UP drain bolt

Inspection

Note
To
clean
or
wash
all

parts
of

master

cylinder

operating
cylinder

and

piping
clean
brake
fluid
must

be
used
Never
use
minera10ils
llUch

as

gasoline
and
kerosene
It

will

ruin
the
rubber

parts
of
the

hydrau

lic

system

I

Check
cylinder
and

piston
for

uneven
wear
or

damage
and
if
neces

sary
replace

2
If
the
clearance
between

cylinder

and

piston
is

more
than

0
15
mm

0
0059
in

replace
cylinder

3

Renew

piston
cup
when
dis

assembled
It
must
also
be

replaced

when
wear
or
deformation
due
to

fatigue
or

damage
is

found

4

Damaged
dust
cover
oil
reservoir

or

cap
should
be

replaced

Return

spring
and
valve

spring
must

also
be

replaced
when

they
are
broken

or
weak

5

Replace
clutch
hose
and
tube
if

any
abnormal

sign
of

damage
or
de

fro

ti

n
is
found

OPERATING

CYLINDER

Removal
and

installation

Removal

1

Detach
clutch
hose
from

operat

ing
cylinder

2
Remove
two
bolts

securing
op

erating
cylinder
to
clutch

housing

Installation

Install

in
the
reverse
order
of
re

moval

Observe
the

following
instructions

Bleed
air

thoroughly
from
clutch

hydraulic
system

2
Do
not

install
return

spring
or

clutch
will

not
be

disengaged

properly

Tightening
torque

Operating
cylinder
securing
bolt

2
5
to
3
5

kg
m

18
to
25
ft
lb

Bleeder
screw

0
7
to
0
9

kg
m
5
1

to
6
5
ft
Ib

Clutch
hose
connector

1
7
to

2
0

kg
m
12
to
14
ft

b
CLUTCH

Disassembly
and

assembly

Disassembly

1
Remove

push
rod
with
dust

cover

2
Remove

piston
assembly
and

pis

ton

spring

3
Remove

bleeder
screw

1
6

Cl11B

5

Piston

cup

6

Operating
cylinder

7
Bleeder
screw
1

Push
rod

2
Dust
cover

3
Piston

spring

4

Piston

Fig
CL
20

Exploded
view

of

operating
cyUnder

Assembly

Assemble
in
the

reverse
order
of

disassembly
Closely
observe
the
fol

lowing
instructions

1

Prior
to

assembly

dip
piston
cup

in

clean
brake
fluid

When

installing
cup
pay
particular

attention
to
its
direction

2

Dip
cylinder
and

piston
in
clean

brake
fluid
before

assembly

Notes

a
Be

sure
to
install

piston
assembly

with

piston
spring
in

place

b
The
clutch

operating
cylinder
is

available
in
both
NABCO
make
and

TOKICO
make
There
is
no
inter

changeability
of

repair
kits
or
com

ponent
parts
between
NABCO
and

TOKICO
makes

When

replacing
the

repair
kit
or

component
parts
ascertain
the

brand
of
the
clutch

operating
cyl

inder

bndy
Be
sure
to
use

parts
of

the

same
make

as
the
former
ones

Inspection

Visually

inspect
all
disassembled

parts
replacing
those
found
worn
or

rl

Q
damaged
too

badly

beyond
speci

fications

BLEEDING
CLUTCH

SYSTEM

The

hydraulic
clutch

system
must

be
bled
whenever
clutch
line
has
been

disconnected
or
air

has
entered
it

When

pedal
action
has
a

spongy

feeling
it
is
an
indication
that
air
has

entered
the
system

Bleeding
clutch

system
is

an
es

sential

part
of

regular
clutch
service

I

Remove
reservoir

cap
and

top
up

with
recommended
brake
fluid

2

Thoroughly
clean
mud
and
dust

from
bleeder
screw
of

operating
cyl

inder
so
that
outlet
hole
is

free
from

any
foreign
rnaterial
Install
bleeder

hose

vinyl
hose
on
bleeder
screw

Place
the
other
end
of
it
in

a
clean

container

3
Have
a
co
worker

depress
clutch

pedal
two
or

three
times
With
clu
tch

pedal
depressed
fully
loosen
bleeder

screw
to
bleed
air
out
of
clutch

sys

tern

4
Close
bleeder
screw

quickly
as

clutch

pedal
is

on
down
stroke

5
Allow
clutch

pedal
to
return

slowly
with
bleeder
screw
closed

6

Repeat
steps
4
and
5
until

no
air

bubble
shows
in

the

vinyl
hose

7

Operate
clutch
several
times

then
check
connections
for
external

hydraulic
leaks

Notes

a
Brake
fluid

containing
air
is
white

and
has
visible
air
bubbles

b
Brake
fluid

containing
no
air
runs

out
of
bleeder
screw
in
a
solid

stream
without
air
bubble

c

Pay
close
attention
to
clutch
fluid

level
in
reservoir

during

bleeding

operation

d
Do
not

reuse
brake
fluid
drained

during
bleeding
operation

e
Exercise
care
not
to

splash
brake

fluid

on
exterior
fInish
as
it
will

damage
the

paint

f
Pour
brake
fluid
into
reservoir

up

to

specifIed
level

REMOVAL

In

dismounting
transmission
from

the
vehicle

proceed
as
follows

I
Disconnect
battery
ground
cable

from
terminal

2

Place
transmission
control
lever
in

neutIal

position

3
Remove
E

ring
and
control
lever

pin
from
transmission

striking
rod

guide
and
remove
control
lever
See

Figure
MT
4

TM335

Fig
MT

4
Remouing
controllelJ
r

4
Jack

up
the
vehicle
and

support

its

weight
on

safety
stands
Use
a

hydraulic
hoist
or

open
pit
if
avail

able

Confirm
that

safety
is
insured

5
Disconnect
exhaust
front
tube

6
Disconnect
wires
from
reverse

lamp
switch
See
Figure
MT
5

7
Disconnect

speedometer
cable

from
rear
extension

housing
See

Figure
MT
5

8
Remove
clutch

operating
cylinder

from
transmission
case
See

Figure

MT5

O

m

J

@

1

Speedometer
cable

2
Reverse

lamp
switch

3
Outch

operating
cylinder

TM774

Fig
MT
5
Bottom
view
of
car
Manual
Transmission

9
Remove
bracket

holding
center

bearing
on
3rd
crossmember

by

loosening
off

attaching
bolts
See

Figure
MT
6

PD219

Fig
MT

6
Removing
center
balring

holding
brucket

10
Uetach

propeller
shaft
from

companion
flange
of

gear
carrier

by

removing
four
bolts

See

Figure
MT
7

Not

a
Remove

propeller
shaft

carefully
so

as
not
to

damage

spline
sleeve

yoke

and
rear
oil
seal

b

Plug

up
the

opening
in
the

rear
of

rear
exteDSion

housing
to

prevent

oil
from

flowing
out

P0220

Fig
MT
7

Remouing
four
bolt

6ecuring
prop
ller

shtJft
to

companion
ltJnge

11

Support
engine
by
locating
a

jacft
under
oil

pan
with
a
wooden

block
used
between
oil

pan
and

jack

12

Support
transmission
with
a

transmissionjack

13
Remove
exhaust

pipe
btacket

by
unscrewing
attaching
bolts
2

California
models

only
See

Figure

MT
8

14
Remove
rear

engine
mounting

insulator

securing
bolts
I
and
rear

mounting
member

securing
bolts
3

See

Figure
MT
8

MT
4
E
A277

Fig
MT
8

Removing
engine
mounting

rear

support

15

Remove
starter
motor

16
Remove
bolt

securing
transmis

sion

to

engine

After

removing
these
bolts

support

the

engine
and
transmission
with

jacks

and
then
slide
tra
ion
rearward

away
from

engine
and
remove
from

the
vehicle

Note
Take
care
in

dismounting
trona

mission
not
to
strike

any
adjacent

parts
and
main
drive
shaft

DISASSEMBLY

TRANSMISSION
CASE

DISASSEMBLY

I
Prior
to

disassembling
transmis

sion

thoroughly
wipe
off
dirt
and

grease
from
it

2

Drain
oil

thoroughly

3
Remove
dust
cover
from
trans

mission
case

Remove
release

bearing
and
with

drawallever

4

Remove
reverse

lamp
switch

5
Move

gear
to
Neutral

6
Remove
speedometer
pinion
and

pinion
sleeve

by

taking
off
lock

plate

7
Remove
E

ring
and

stopper
guide

pin
from
rear
end
of

re
ll
extension

See

Figure
MT

9

TM337

Fig
MT
9

Removing
triking
rod

E

ring
and

topper
pin

5

Apply
a

light
coat

of
multi

purpose
grease
to

withdrawal
lever

release

bearing
and

bearing
sleeve
in

stall
them
on
clutch

housing

After

connecting
them

with
holder

spring
instaU
dust

cover
on
clutch

housing

6
Install
control
lever

temporarily

and

shift
control

lever

through
all

gears
to
make

sure

that

gears

opera
Ie

smoothly

Note
Install

drain

plug
and
filler

plug

ith
sealant
in

place
Manual

Transmission

INSTALLATION

Install
the
transmission
in
the
reo

verse
order
uf
removal

paying
atten

tion

to
the

following

points

1
Before

installing
dean

mating

surfaces
of

engine
rear

plate
and

trans

mission
case

2

Before

installing
lightly
apply

grease
to

spline
parts
of
clutch
disc

and
main
drive

gear

3

Tighten
bolts

securing
trans

mission

to

engine
to

specifications
See

Figure
MT
55

5
SPEED
TRANSMISSION

TYPE

DESCRIPTION

REMOVAL

DISASSEMBL
Y

TRANSMISSION
CASE
DISASSEMBLY

DISASSEMBL
Y
OF
GEAR

ASSEMBLY

REAR

EXTENSION
DISASSEMBLY

ADAPTER
PLATE

DISASSEMBLY

INSPECTION

TRANSMISSION
CASE
AND
REAR

EXTENSION
HOUSING

DESCRIPTION

The
transmission

is
of
a
5

speed

forward
with
overdrive
4

OD

speed

fully
synchronized
constant

mesh

type
that

uses
helical

gears

The
5

speed
transmission
covered
in

this
section
is

similar
in

all

respects
to

the
4

speed
transmission

type

F4W71B
stated

previously
except
the
CONTENTS

MT14

MT17

MT17

MT17

MT17

MT18

MT19

MT19
4
4

to
5
9

kg
m

32
to
43
ft
Ib

1

0
9
to
1
2

kg
m

7
to
9
rt
lb
TM773

Fig
MT
55

Tightening
torque

4
Remove
filler

plug
and
fIll
trans

mission
with
recommended

gear
oil

to

the
level
of
the

plug
hole

Approxi

mately
I
7

liters
3

pt
3

pt

FS5W71B

BEARING

GEARS

AND
SHAFTS

BAULK

RING

OIL

SEAL

ASSEMBL
Y

FRONT
COVER
ASSEMBLY

REAR

EXTENSION

ASSEMBLY

GEAR

ASSEMBLY

TRANSMISSION
ASSEMBLY

INSTALLATION
MT19

overdrive

position
of
it

The

overdrive

gear
rides
on
the

mainshaft

freely
through
the

needle

roller

bearing
and
counter

overdrive

gear
is
fitted
to
the

countershaft

by

splines

The
overdrive

synchronizer
system

is

on
the
mainshaft
rear
side

MT14
MT19

MT19

MT19

MT19

MT19

MT19

MT19

MT19

MT

20

MT20

Placing
the
control
lever
in

over

drive

position
brings
the
reverse
OD

coupling
sleeve
reverse

gear
on
main

shaft
into
mesh
with
overdrive
clutch

gear
The
reverse
OD

synchronizer

hub
is

fItted

to
the
mainshaft

by

splines
so
the
overdrive

gear
on
main

shaft

turns

together
with
the
main

shaft

Manual

iTransmission

TIGHTENING
TORQUE

Installa
tion

Engine
to
transmission

installation
bolt

Transmission
to

engine
rear

plate
bolt

Clutch

operating
cylinder
installation

bolt

Rear

mounting
insulator
to

transmission
installation
bolt

Crossmember

mounting
bolt

Propeller
shaft
to
diff
installation
bolt

Gear

assembly

Rear

extension
installation
bolt

Front
cover

installation
bolt

Bearing
retainer
to

adapter

plate
screw

Main
haft
nut

Check
ball

plug

Stri
lever

lock

pin

Reverse
select

return

plug

Speedometer
sleeve

locking

plate
nut

Reverse

lamp
switch

year
oil
Ier

pl
g

Ge
r
oil
drain

plug
Unit

kg
m
ft
lb

4
4

to
5

9
32

to
43

0

9

to
1
2
7
to
9

2
5

to
3
0

18
to
22

0
8
to
1
1
6

to
8

3

2
to
43

23
to
31

2
4

to
33

17
to

24

1

6

to
2
1

12
to
IS

1
6
to
2
1

12to
IS

1
9
to
2
S
14
to
18

14

0
to
17
0

101
to
123

1
9
to
2
S

14
to
18

0
9
to
1
2

7
to
9

0
9
1
2
7

to
9

0
4

to
O
S

3

to
4

2
0
to
3
0

14
to
22

2
S

to
3
5

18
t02S

2
S

toTS

l8
to
2S

or

SPECIFICATIONS

Gear
backlash

Maindrive

gear
to
counter
drive

gear

1st

gear

2nd

gear

3rd

gear

OD

gear

Gear

end

play

1st

gear

2nd

gear

3rd

gear

OD

gear

Counter

gear

Reverse
idler

gear

Clearance

between
baulk

ring
and

gear

All

gears

Counter

bearing

adjusting
shim
Unit

mm
in

0
05
to
0

10
0
0020
to

0
0039

0
05
to
0

20
0
0020
to
0
0079

O
OS
to
0
20
0

0020
to
0
0079

0
05
to
0
20
0
0020
to
0
0079

0
05
to
0

20
0
0020
to
0
0079

0
32
to
0
39

0
0126
to
0
0154

0
12
to
0
19

0
0047
to
0

0075

0
13
to
0
37
0
0051
to
0
0146

0
32
to
0
39

0
0126
to
0

0154

0
01
to
0
21

0
0004
to
0
0083

0
05

to
0
20
0
0020

to
0
0079

1
25
to
1

60
0
0492
to
0
0630

0
6
0
024

0
5
0
020

0
4
0

016

0
3
0
012

0
2
0
008

0
1

0
004

MT
22

Automatic

Transmission

MAJOR

REPAIR

OPERATION

SERVICE
NOTICE
FOR

DISASSEMBLY

AND

ASSEMBLY

TORQUE
CONVERTER

INSPECTION

TRANSMISSION

DISASSEMBL
Y

INSPECTION

ASSEMBL
Y

SERVICE
NOTICE

FOR
DISASSEMBLY

AND
ASSEMBLY

I
It

is
advisable

that

repair
opera

tions
be

carried
out
in
a

dust

proof

room

2
Due

to
the
differences
of
the

engine
capacities
the

specifications
of

component

parts
for

each
model
s

transmission

may
be
different

They

do
however
have

common

adjust

ment

and

repair

procedures
as
well
as

cleaning
and

inspection

procedures

outlined
hereinafter

3

During
repair
operations
refer
to

Service
Data

and

Specifications
see

tion
for

the
correct

parts
for
each

model

4

Before

removing
any
of

subas

semblies

thoroughly
clean
the
outside

of
the

transmission
to

prevent
dirt

from

entering
the
mechanical

parts

5

Do
not
use
a
waste

rag
Use
a

nylon
or

paper
cloth

6
After

disassembling
wash
all
dis

assembled

parts
and
examine
them
to

see
if
there
are

any
worn

damaged
or

defective

parts
and
how

they
are

affected
Refer
to

Service
Data
for

the

extent
of

damage
that

justifies

replacement

7

As
a
rule

packings
seals
and

similar

parts
once
disassembled
should

be

replaced
with
new
ones

TORQUE

CONVERTER

The

torque
converter
is

a
welded

construction
and

can
not
be
disas

sembled
CONTENTS

AT

36

AT

36

AT

36

AT

36

AT

36

AT
38

AT

38
COMPONENT
PARTS

FRONT

CLUTCH

REAR

CLUTCH

LOW
REVERSE
BRAKE

SERVO

PISTON

GOVERNOR

OIL

PUMP

PLANETARY

CARRIER

CONTROL

VALVE
AT

40

AT
40

AT
41

AT
42

AT
42

AT
43

AT
43

AT
44

AT

44

INSPECTION
2

Remove
bolts

securing
converter

1

Check

torque
convertf

for

any
housing
to
transmission

case
Remove

sign
of

damage

bending
oil
leak

or
torque
converter

deformation

If

necessary
replace
3
Remove

speedometer
pinion

2

Remove
rust
from

pilots
and
sleeve

bolt
Withdraw

pinion

bosses

completely
4

Remove
downshift
solenoid
and

If

torque
converter
oil
is

fouled

or
vacuum

diaphragm
Do

not
leave
dia

contaminated
due
to
burnt
clutch

phragm
rod
at
this

stage
of
disas

flush
the

torque
converter
as
follows
sembly
Rod
is

assembled
in

top
of

vacuum

diaphragm
See

Figure

I
Drain
oil
in

torque
converter

AT

53

2
Pour

non
lead

gasoline
or

kero

sene
into

torque
converter

approxi

mately
0
5
liter

I
U
S

pt
U

Imp

pt

3

Blow
air

into

torque
converter

and

flush
and
drain

out

gasoline

4
Fill

torque
converter
with

torque
converter
oil

approximately

0
5
liter
I

V
S

pt
U

Imp
pt

5

Again
blow
air
into

torque
con

verter
and
drain

torque
converter
oil

TRANSMISSION

DISASSEMBLY

I

Drain
oil
from
the

end
of
rear

extension

Mount
transmission
on

Transmission
Case

Stand
ST07870000

or
ST07860000
Remove

oil

pan
See

Figure
AT
52

AT118

Fig
AT

52

Removing
oil

pan

AT

36
Fig
AT
53
Down

hilt
olenoid
and

vacuum

dilJphragm

5

Remove

bolts
which

hold
valve

body
to
transmission

case
See

Figure

AT
54

Fig
AT
54

Removing
valve

body

6
Loosen
lock
nut

@
on

piston

stem

D
as
shown
in

Figure
AT

55

Then

tighten

piston
stem
in

order
to

prevent
front
clutch

drum
from

falling

when
oil

pump
is
withdrawn

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

REMOVAL

I
Jack

up
rear
of
vehicle
and

sup

port
it

by
placing
a

safety
stand
under

rear
axle
case
Drain

gear
oil

2
Remove

propeller
shaft
and
rear

axle
shafts
These
works
can
be
done

by
referring
to
Rear
Axle
and
Rear

Suspension

3
Loosen
off
bolts

securing
differ

ential
carrier
to
rear
axle
cas
and

take
out
differential
carrier

assembly

PRE
DISASSEMBLY

INSPECTION

Differential
carrier

should
be
in

spected
before

any

parts
are
removed

from
it

These

inspections
are

helpful
to

fmd
the

cause
of
a

problem
and

to

determine
the
corrections

needed

I

Mount
differential
carrier
on
Dif

ferential
Attachment
ST063
I
0000

ST063
10000

Fig
PD
7

Holding
differential
can
ier

2

Visually
inspect
parts
for
wear
or

damage

3

Rotate

gears
to
see
if
there
is

any

roughness
which
would
indicate
dam

aged
bearings
or

chipped
gears
Check

the

gear
teeth
for

scoring
or

signs
of

abnormal
wear

Measure

preload
of

drive

pinion
See

Figure
PD
19

4

Set

up
a
dial
indicator
and
check

the
backlash
at
several

points
around

ring
gear
Backlash
should
be
0
15

to

0
20
mOl
0
00S9
to
0
0079
in

S
Check
the

gear
tooth
contact

with
a
mixture
of
ferric
oxide
and

g
ar
oil
to
all

ring
gear
teeth

For
the
tooth
contact

pattern
see

paragraph
dealing
with
tooth
contact

pattern
adjustment
DISASSEMBLY

I
Put
match

tpark
on
side

bearing

caps
and
carrier
and

remove
side

bearing
caps
and
take
out

differential

case
assembly

P0203

Fig
PD

B
Removing
differenlwl

case
assem

bly

Note
Care

should
be

taken
not
to

confuse
the
left
and

right
hand

bearing

caps
and

bearing
outer
race

so
that

reassembly
will
be

easily

carried
out
with
the
same
parts
in

the

original
position

2
Remove

drive

pinion
nut

using

Drive
Pinion

Flange
Wrench

ST31530000
and

pull
off

companion

flange
using
a
standard

puller

Fig
PD
9

Removing
drive

pinion

nul

3

Extract
drive

pinion
assembly
to

the
rearwards

by
tapping
the
front
end

with
a
soft
hammer
Drive

pinion
can

be
taken
out

together
with
rear
bear

ing
nner
race

bearing
spacer
and

washer

4
Remove
oil
seal
and
take
out

front

bearing
inner
race

Note
Oil
seal
must
not
be
used

PD
7
5

Hold
rear

bearing
inner

race
with

Drive

Pinion
Rear

Bearing
Inner

Race

Puller
ST30031000
and
extract
from

drive

pinion
with
a

press

STJ0031000

PD205

Fig
PD
10

Removing
pinion
rear

bearing
inner
race

6
To

remove
outer
races
of
both

front
and
rear

bearing
apply
a

brass

drift
to

race
side
surface
and
with

draw

them

by
tapping
the

top
of
drift

with
a
hammer

Fig
PD
l1
Removing

pinion
front
and

rear

bearing
outer
races

Dissssembly
of
dHferentIeI

case

1
When

replacing
side

bearing
use

Differential
Side
Bearing
Puller
Set

ST3306S00
I

set
of
ST330S100
I

and

ST33061000

Fig
PD
12

Removing
ide

bearing

P
ROPELLER
SHAFT
DIFFERENTIAL
CARRIER

c
Flank
oontact

Adjust
in

the
same
manner
as
in

b

cV

t

PD195

Fig
PD
25
Flank
contact

d
Face
contact

Adjust
in
the

same
manner
as
in

a

P0196
t

Fig
PD
26
Face

contact

e
Correct
tooth
contact

Fig
PD
27
Correct

contact

Note

Change
in
thickness
of

adjWll

ing
washer
is

accompanied
by

change
in
backlash
Oled
it
when

instaIIi
gear
INSTALLATION

Installing
can
be

done
in
the
reverse

order
of
removal

Tightening
torque

Gear
carrier
to
rear
axle
case

1
7

to
2
5

kg
m

12
to
18
ft
lb

Drain
and
filler

plug

6
0
to
10
0

kg
m

43
to
72
ft
lb

Gear
oil

capacity
1
0
liter

2
US

pt
I
Y

Imp
pt

REPLACEMENT
OF

FRONT
OIL
SEAL

Replacement
of
front
oil

seal
with

d
ifferential
carrier

assembly
installed

on
the
vehicle

When

replacing
front
oil
seal

do
as

follows

1
Drain

gear
oil

2
Raise

the
rear
end
of

vehicle

and

support
it
with

safety
stands

3
Detach

propeller
shaft
from
com

panion

flange
of
carrier

4

R
1
ove
drive

pinion
n
t

holding

companion
flange
with
Drive
Pinion

Flange
Wrench

ST31S30000
P0238

Fig
PD

29
Removing
companion

flange

6
Remove
oil
seal

7
Set

new
oil
seal
in

position
using

Oil
Seal

Fitting
Tool

KV38102SS0

Apply
grease
in
between
seal

lips

8
Fit

companion
flange
and
flat

w

sher
on
drive

pinion
and
secure

them
in

position
by
tightening
nut
to

the

given

torque
confirming
specified

preload
using
Drive
Pinion

Flange

WrencliST31530000

Tightening
torque

14
0

to
17
0

kg

101
to
123
ft
Ib

Pinion

bearing
preload

with
oil
seal

11
0
to
14
0

kg
cm

9
5
to
12
in
lb

At

companion
flange
bolt
hole

3
1
to
4

o
g

6
8
8
8Ib

Notes

a
Preioad
of
old

bearing
is
the
same

value
as
that
of

a
new
bearing

b
If
the
desired
nut

tightening
torque

P0237
can
ot
be
obtained
renew
nut
and

readjust

Fig
PD
28
R

moving
drive

pinion

nut

S
Extract

companion
flange

using
a

standard

puller

PD
13
8
Reinstall

propeller
shaft
and
fill

up
differential
carrier

with

gear
oil

Condition

Seizure
of

breakage

Oil

leakage
PROPELLER
SHAFT

IFFERENTIAl

CARRIER

Probable
cause

Shortage
of
oil
or

use
of
unsuitable
oil

Excessively
small
backlash

Incorrect

adjustment
of

bearings
or

gears

Severe
service
due

to
an
excessive

loading

improper
use
of

clutch

Loose
bolts
and
nuts
such
as

ring
gear
bolts

Worn
out
damaged
or

improperly
driven

front
oil
seal

or
bruised
dented
or
abnor

mally
worn
slide
face

of

companion
flange

Loose

gear
carrier

bolts

Faulty

gasket

Loose
fIller
or

drain

plug

Clogged
or

damaged
breather

PD

15
1

j

Corrective
action

Replace

faulty
parts
and

use
reconunended

gear
oil

Adjust
backlash
and

replace
as

required

Replace

faulty
parts

Replace
faulty
parts

Replace

faulty
parts

Replace
faulty
oil
seal

Repair
the

affected

flange
with

sandpaper
or

replace
if
nee

essary

Tighten
the

bolts
to

specified
torque

Replace
faulty

gasket
with
new
one

Tighten
the

plug

Repair
or

replace